lapel pin 1) Material: brass/iron/aluminum/stainless steel/zinc alloy2)Processes Variety of surface metals from hard enamel, imitation hard enamel, die struck soft enamel, photo etched, or printing pins are availabl3)Available plating: gold, silver, bronze, nickel, black nickel, chrome, copper, anodized plating, misty plating4) Minimum order quantity:500PCSSample time: 7 daysDelivery time:21daysShipping by sea, air FedEx, DHL, TNT or other nominated way